Non-renewable energy means the energy source will eventually run out. Most of the non-renewable energy sources belong to the fossil fuel category. Coal, natural gas, crude oil and liquid petroleum gas are examples of non-renewable energy sources.Know More
Carbon is the main element in fossil fuels; they were formed 300 to 360 million years ago. All fossil fuels are created through a similar process. Animals and plants that died were covered with sediment, rocks and seabed, and over time, the heat and pressure turned the remains into fossil fuels. There are huge underground pockets of coal, petroleum and natural gas all over the world. Non-renewable resources are easy to get to and relatively inexpensive to obtain as well, which makes them a valuable source of energy.
Burning fossil fuels can be very harmful because the particles released pollute the air, land and water. The use of these fuels also adds to the greenhouse effect, causing global warming as these gases don't allow the heat to escape the atmosphere. A lot of fossil fuels are used to produce electricity. According to the Central Intelligence Agency, the United States produces 66 percent of it's electricity with fossil fuels and another 8% from nuclear power.Learn more about Electricity
Non-conductors of electricity are also known as insulators. Insulators do not allow a significant amount of electrical current to flow through. Some examples of insulators are glass, rubber and plastic.Full Answer >
There are no non-conductive metals; all metals conduct electricity, though some do this more effectively than others. Thanks to the molecular structure of metals, they are all relatively effective conductors, though silver is the most conductive metal known to man.Full Answer >
Wind energy is important because it holds immense potential in supplying electricity across the world. Unlike other sources of electricity that require fuel in processing plants, wind energy generates electricity through wind, which is free. Wind is considered a native fuel that does not need to be transported or mined, eliminating two costly expenses from long-term energy expenses.Full Answer >
Nuclear energy is mostly used for electric power generation. According to the World Nuclear Association, there were over 430 commercial nuclear power reactors operating in 31 countries as of April 2014, with over 370,000 MW of total capacity. Approximately 70 more reactors were under construction as of April 2014.Full Answer >